Autofocus-based compensation (ABC) system and method for a hovering ground moving target indication (GMTI) sensor
US8994584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2012 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | May 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the present invention generally relate to motion compensation, and in particular to an autofocus-based compensation (ABC) systems and methods for a ground moving target indication platform. According to one embodiment, a method for autofocus based compensation of range data acquired from an object in motion is provided. The method may include: receiving range data; steering at least one receive beam of the range data in a desired direction; transforming the range data into the range domain; determining the width of a main clutter lobe; excluding data that is not part of the main lobe clutter response; transforming the main-lobe clutter response into the range domain; calculating a phase correction term; and applying the phase correction to the original range data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.